Henry lampman



(No Model.)

H. LAMPM AN.

GRAIN CLEANING MACHINE.

No 317,655. Patented'May 12, 1885.

N PETERS. "man. D- C Uairran STATES PATENT @rrma.

HENRY LAMPMAN, OF AFTON, NEWV YORK.

GRAIN-CLEANING MACHINE.

SPECIPICATIQIT forming part of Letters Patent No. 317,655, dated May12,1885.

Application filed February 4, 1884. (No model.)

To aZZ whom it may concern.-

Be it known that I, HENRY LAMPMAN, a citizen of the United States,residing at Afton, in the county of Chenango and State of New York, haveinvented a new and useful Grain-leaning Machine, of which the followingis a specification.

My invention relates to improvements in grain-cleaning machines; and itconsists in the peculiar combinations and the construction andarrangement of parts hereinafter more fully described and claimed.

In the accompanying drawings, which form a part of this specification,Figure 1 is a vertical section of the entire machine, showing thearrangement of its parts. Fig. 2 is a view of an ordinary shaft andclutch coupling on a small scale. Fig. 3 is an under plan View of thecap of the case. Fig. 4 isa horizontal section of the separator, takenon the line 1 1 of Fig. 1. Fig. 5 is a view of one side of thebrush-pulley. Fig. 6 is a view of the opposite side of the same; Fig.7,detail views of the cylinder. Fig. 8 is a plan view of the corrugatedbottom plate of the scouring device. Fig. 9 is a top plan of the lowerplate of the case, and Fig. 10 is a reverse plan of the same.

Referring to the details of the drawings, the

- letter A represents a hopper; B, a circular case provided with acorrugated cap, I). G is a corrugated plate. D is the drivingshaft. E Frepresent the air-trunk, and H I the fan carried by the fan-shaft L. Kis an air-chamber situated over the air-trunk E F. J represents acorrugated and ribbed cylinder.

When it is desired to transmit motion to this machine from the runningstone of a grinding-mill, the shaft 1 is coupled to the shaft D by anysuitable clutch-coupling-as, for instance, that shown in the drawings.

The corrugated cap I; is provided with openings for the free admissionof the grain from the hopper to the interior of the machine.

1? is a pulley secured to the shaft D below the plate a, and carriesbrushes on its under surface, as shown in Fig. 1. This pulley hasopenings about its center for the passage of the grain from the case Band cylinder J to the plate 0.

w represents the corrugated upper end of the cylinder, and w representsvertical ribs,

which extend the length of the cylinder and revolve near the innersurface of the case B. y is the lower end of the cylinder, and isprovided with circular ribs y, set at an angle to its radii to carry thegrain to the dischargeopening near the lower end of the case B.

R is an opening for the discharge of the scoured grain into the spout Twhich leads to the running stone.

The corrugated side of the plate a faces lower end of the cylinder.

The small opening near the center is for the discharge of the grain fromthe case, and the other side is provided with a slide operated by ascrew and hand-wheel, d, controlling the discharge from the case B.

The cylinder J and the brushpulley P are carried by the shaft D. Thefan-shaft L is rotated by abelt passing around pulleys P and t, Fig. 1.

The fan H I and the air-trunk E F form no part of my present invention;but on the top of the separator proper, which has been long in use, Ierect an air-chamber, K, over the airtrunk E F above the broken line 33, for the purpose of equalizing and steadying the blast of air throughthe air-trunk. I havelearned by many tests that the revolutions of thefan wings produce correspondingpulsations in the air-blast through theair-trunk, and consequently the separation of the grain from impuritiesis not equally perfect at every moment, and that by providing anair-chamber, as above described, the blast is equalized or made steady,and in consequence the work is more perfectly done. The strength of theblast is regulated by means of the arm or valve 9.

Having described the construction of my machine for cleaning grain, Inext describe the mode of operation. The grain passes from the hopper Athrough large openings in the top of the case B onto the top of therevolving-cylinder J, and immediately fills all the space between thecase and cylinder. The opening in the lower end of the case for thedischarge of the grain being many times smaller than the openings on thetop, the case is necessarily kept crowded full of grain, subject to acontinuous process of scouring until discharged through the pulley Ponto the the plate 0. It is there acted upon by the brushes and swept'to' the opening R, thence it falls through the spout r into thesuction-blast of the separator at E, thence as clean grain into the eyeof the millstone. The grain falling into the eye of therunning'millstone, or the feed, as millers term it, is regulated bymeans of the slide and hand-wheel d, and is completely under control ofthe operator.

Having described the construction and the mode of operation of myimproved grain-cleaning machine, what I claim as new, and desire.

to secure by Letters Patent, is

1. The combination of the hopper'A, case B, situated immediately belowsaid hopper and having the corrugated cap b,provided with openings, asdescribed, the shaft D, cylinder J, secured to said shaft, thecorrugated plate 0, and the brush-pulley I, secured to said shaft D, andcarrying brushes on its under side and provided with openings for thepassage of grain from the case B and cylinder J to said plate 0,substantially as described.

2. The combination, with the hopper A, case B, having corrugated cap I),and shaft D, of the cylinder J, secured to said shaft and revolving insaid case and provided with vertical ribs to, and on its lower face withcircular ribs 3 substantially as and for thepurposes described.

3. The herein-described grain-cleaning machine, consistingof the hopperA, case B, having corrugated cap 12, secured to the top of said case,cylinder J, revolving within said case, shaft D, brush-pulley P, alsosecured to said shaft, corrugated plate 0, arranged under said pulley1?, fan H I,. air-chamber K, arranged over said fan, and the air-trunk EF, situated between said fan and air-chamber, the parts beingconstructed, arranged, and operating substantially as herein shown, andfor the purposes described.

HENRY LAMPMAN.

Witnesses:

E. M. SHAY, O. N. SWIFT.

